Question
Find Greatest Common Divisor of 128 and 324, by listing out the factors.
Answer
The GCD of given numbers is 4.
Explanation
| factors of 128 are : | 1 , 2 , 4 , 8 , 16 , 32 , 64 , 128 |
| factors of 324 are : | 1 , 2 , 3 , 4 , 6 , 9 , 12 , 18 , 27 , 36 , 54 , 81 , 108 , 162 , 324 |
We see that the Greatest Common Factor = 4.
This solution can be visualized using a Venn diagram.
The GCD equals the product of the numbers at the intersection.
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